Parsing Plain JSON Array in Objective C [duplicate]

Question

I want to parse a plain JSON array like:

{
    "ns": [
        [
            "1364987475027",
            "Alert1",
            "001"
        ],
        [
            "1364987475042",
            "Alert2",
            "001"
        ],
        [
            "1364987475058",
            "Alert4",
            "001"
        ]
    ]
}

To get the array in simple arrays of string. I found many posts with JSON dictionary arrays. But in this case the JSON is not having keys for the values. Kindly help.

I mentioned that the posts are for keyed values and not for plain arrays @jv42 — Sangram Mohite
– Sangram Mohite, Commented Apr 3, 2013 at 12:41
Have you looked at the first question linked? It contains a solution to your problem. — jv42
– jv42, Commented Apr 3, 2013 at 13:16

Bhavin · Accepted Answer · 2013-10-05 10:21:21Z

17

Answer : NSJSONSerialization.

NSJSONSerialization class can be used to convert JSON to Foundation objects and Foundation objects to JSON. In your case, you should use -JSONObjectWithData:options:error: of NSJSONSerialization class to retrieve a Foundation object from given JSON data.

Sample Code :

NSError *error;
NSDictionary *json = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:&error];
NSArray *fetchedArr = [json objectForKey:@"ns"];

edited Oct 5, 2013 at 10:21

answered Apr 3, 2013 at 11:32

Bhavin

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Comments

dasdom · Accepted Answer · 2013-04-03 11:32:37Z

2

The NSJSONSerialization method JSONObjectWithData:options:error can to that. You will get a dictionary with one value for the key "ns" and the value will be an array of arrays.

answered Apr 3, 2013 at 11:32

dasdom

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Comments

Prasad G · Accepted Answer · 2013-04-03 11:35:25Z

2

 NSError *error = NULL;
NSData* data = [yourJsonString dataUsingEncoding:NSUTF8StringEncoding];
            NSDictionary* json = [NSJSONSerialization
                                  JSONObjectWithData:data
                                  options:kNilOptions
                                  error:&error];
NSArray *resultArray = [json objectForKey:@"ns"];//resultArray contains array type objects...

I think it will be helpful to you.

answered Apr 3, 2013 at 11:35

Prasad G

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Lithu T.V · Accepted Answer · 2013-04-03 11:47:07Z

2

And the description shows what you are looking for

   NSError *error;
    NSDictionary *json = [NSJSONSerialization JSONObjectWithData:responseData options:kNilOptions error:&error];

    NSArray *fetchedArr = [json objectForKey:@"ns"];

    for (NSArray *arr in fetchedArr) {
        [arr description];
    }

edited Apr 3, 2013 at 11:47

answered Apr 3, 2013 at 11:35

Lithu T.V

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